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Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR SOT23-5
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：1
- Output Type：Open-Drain
- Voltage - Supply, Single/Dual (±)：1.8V ~ 5.5V
- Voltage - Input Offset (Max)：7mV @ 5V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：73mA @ 5V
- Current - Quiescent (Max)：120µA
- CMRR, PSRR (Typ)：70dB PSRR
- Propagation Delay (Max)：600ns
- Hysteresis：2mV
- Operating Temperature：-40°C ~ 125°C
- Package / Case：SC-74A, SOT-753
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
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Overview
The LMX331HAUK+T is a single-channel, low-voltage comparator manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 1.8V to 5.5V and supports an extended automotive temperature range from -40°C to +125°C. The device features internal hysteresis for noise immunity and utilizes a 5-pin SOT23 surface-mount package.
Feature Summary
- Integrated internal hysteresis provides noise immunity and prevents output oscillations during slow-moving input transitions.
- Designed as a drop-in replacement for LMV331/LMV393/LMV339 with enhanced performance characteristics including improved RF immunity.
- Operates on a single supply voltage ranging from 1.8V to 5.5V with low power consumption suitable for battery-powered applications.
Applications
- Mobile communications devices
- Automotive electronic systems
- Battery-powered electronics
- General-purpose portable devices
Procurement Notes
Verify the specific ordering suffix '+T' indicates tape and reel packaging when sourcing components. Confirm that the 'H' designation in the part number corresponds to the version with integrated hysteresis. Ensure compatibility with existing PCB footprints designed for standard SOT23-5 packages before finalizing procurement decisions.
Selection Notes
Select this component when noise immunity is critical for signal integrity without requiring external feedback resistors. It serves as a direct pin-compatible upgrade for designs previously utilizing LMV331 comparators. Consider its low supply current and wide operating temperature range for harsh or space-constrained environments.
Part Context
This device belongs to the LMX331/LMX393/LMX339 family of general-purpose, low-voltage comparators. Manufactured using advanced submicron CMOS technology, the series offers superior performance over traditional BiCMOS or bipolar versions. The H-series variants specifically address stability issues found in standard comparators through built-in hysteresis mechanisms.
Replacement Considerations
LMX331HAUK+T is a pin-for-pin compatible replacement for the LMV331AUK+T. Designers upgrading from the LMV331 should note the addition of internal hysteresis in the LMX331H variant, which may alter circuit behavior if external hysteresis was previously implemented.
FAQ
What distinguishes the LMX331H from the standard LMX331?
The LMX331H includes 2mV of internal hysteresis to prevent output oscillations caused by noise or slow-moving input signals, whereas the standard LMX331 does not have this feature.
Is the LMX331HAUK+T suitable for automotive applications?
Yes, the device is guaranteed to operate over the extended automotive temperature range of -40°C to +125°C, making it suitable for automotive electronics.
